File转Base64
代码语言：javascript
复制public static String file2Base64(File file) {
if(file==null) {
return null;
}
String base64 = null;
FileInputStream fin = null;
try {
fin = new FileInputStream(file);
byte[] buff = new byte[fin.available()];
fin.read(buff);
base64 = Base64.encode(buff);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (fin != null) {
try {
fin.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return base64;
}
Base64转File
代码语言：javascript
复制public static File base64ToFile(String base64) {
if(base64==null||"".equals(base64)) {
return null;
}
byte[] buff=Base64.decode(base64);
File file=null;
FileOutputStream fout=null;
try {
file = File.createTempFile("tmp", null);
fout=new FileOutputStream(file);
fout.write(buff);
} catch (IOException e) {
e.printStackTrace();
}finally {
if(fout!=null) {
try {
fout.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return file;
}
